Mercurial > hg > graal-compiler
annotate graal/com.oracle.truffle.sl/src/com/oracle/truffle/sl/nodes/TernaryNode.java @ 7848:698cd036a1ca
Added a ternary operator to simple language to test short circuit specialization.
author | Christian Humer <christian.humer@gmail.com> |
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date | Tue, 19 Feb 2013 17:27:02 +0100 |
parents | 0110e781b6fa |
children | aa9ffb3a715e |
rev | line source |
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Made the usage of generic types more flexible for short circuits and generic specializations.
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1 /* |
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2 * Copyright (c) 2012, 2012, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 package com.oracle.truffle.sl.nodes; |
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24 |
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25 import java.math.*; |
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26 |
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27 import com.oracle.truffle.api.codegen.*; |
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28 |
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29 @SuppressWarnings("unused") |
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30 @ExecuteChildren({"conditionNode", "ifPartNode", "elsePartNode"}) |
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31 public abstract class TernaryNode extends TypedNode { |
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32 |
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33 @Child protected ConditionNode conditionNode; |
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34 |
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35 @Child protected TypedNode ifPartNode; |
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36 |
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37 @Child protected TypedNode elsePartNode; |
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38 |
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39 public TernaryNode(ConditionNode condition, TypedNode ifPart, TypedNode elsePart) { |
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40 this.conditionNode = adoptChild(condition); |
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41 this.ifPartNode = adoptChild(ifPart); |
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42 this.elsePartNode = adoptChild(elsePart); |
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43 } |
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44 |
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45 public TernaryNode(TernaryNode condition) { |
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46 this(condition.conditionNode, condition.ifPartNode, condition.elsePartNode); |
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47 } |
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48 |
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49 @ShortCircuit("ifPartNode") |
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50 public boolean needsIfPart(boolean condition) { |
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51 return condition; |
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52 } |
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53 |
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54 @ShortCircuit("elsePartNode") |
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55 public boolean needsElsePart(boolean condition, boolean hasIfPart, Object ifPart) { |
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56 return !hasIfPart; |
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57 } |
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58 |
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59 @Specialization |
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60 public int doInteger(boolean condition, boolean hasIfPart, int ifPart, boolean hasElsePart, int elsePart) { |
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61 return hasIfPart ? ifPart : elsePart; |
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62 } |
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63 |
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64 @Specialization |
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65 public BigInteger doBigInteger(boolean condition, boolean hasIfPart, BigInteger ifPart, boolean hasElsePart, BigInteger elsePart) { |
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66 return hasIfPart ? ifPart : elsePart; |
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67 } |
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68 |
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69 @Generic |
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70 public Object doGeneric(boolean condition, boolean hasIfPart, Object ifPart, boolean hasElsePart, Object elsePart) { |
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71 return hasIfPart ? ifPart : elsePart; |
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72 } |
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73 } |